drm/msm/dsi: remove msm_dsi_pll_set_usecase

msm_dsi_pll_set_usecase() function is not used outside of individual DSI
PHY drivers, so drop it in favour of calling the the respective
set_usecase functions directly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Tested-by: Stephen Boyd <swboyd@chromium.org> # on sc7180 lazor
Link: https://lore.kernel.org/r/20210331105735.3690009-10-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/dsi/dsi.h

@@ -100,8 +100,6 @@ int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
 	struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
 void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
 int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
-int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
-			    enum msm_dsi_phy_usecase uc);
 #else
 static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
 {
@@ -118,11 +116,6 @@ static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
 {
 	return 0;
 }
-static inline int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
-					  enum msm_dsi_phy_usecase uc)
-{
-	return -ENODEV;
-}
 #endif
 
 /* dsi host */

drivers/gpu/drm/msm/dsi/phy/dsi_phy.h

@@ -29,8 +29,6 @@ struct msm_dsi_pll_ops {
 	void (*destroy)(struct msm_dsi_pll *pll);
 	void (*save_state)(struct msm_dsi_pll *pll);
 	int (*restore_state)(struct msm_dsi_pll *pll);
-	int (*set_usecase)(struct msm_dsi_pll *pll,
-			   enum msm_dsi_phy_usecase uc);
 };
 
 struct msm_dsi_phy_cfg {

drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c

@@ -1049,7 +1049,7 @@ static int dsi_10nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
 	/* Select full-rate mode */
 	dsi_phy_write(base + REG_DSI_10nm_PHY_CMN_CTRL_2, 0x40);
 
-	ret = msm_dsi_pll_set_usecase(phy->pll, phy->usecase);
+	ret = dsi_pll_10nm_set_usecase(phy->pll, phy->usecase);
 	if (ret) {
 		DRM_DEV_ERROR(&phy->pdev->dev, "%s: set pll usecase failed, %d\n",
 			__func__, ret);
@@ -1109,7 +1109,6 @@ const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs = {
 		.destroy = dsi_pll_10nm_destroy,
 		.save_state = dsi_pll_10nm_save_state,
 		.restore_state = dsi_pll_10nm_restore_state,
-		.set_usecase = dsi_pll_10nm_set_usecase,
 	},
 	.min_pll_rate = 1000000000UL,
 	.max_pll_rate = 3500000000UL,
@@ -1136,7 +1135,6 @@ const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs = {
 		.destroy = dsi_pll_10nm_destroy,
 		.save_state = dsi_pll_10nm_save_state,
 		.restore_state = dsi_pll_10nm_restore_state,
-		.set_usecase = dsi_pll_10nm_set_usecase,
 	},
 	.min_pll_rate = 1000000000UL,
 	.max_pll_rate = 3500000000UL,

drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c

@@ -1190,7 +1190,7 @@ static int dsi_14nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
 				REG_DSI_14nm_PHY_CMN_GLBL_TEST_CTRL,
 				DSI_14nm_PHY_CMN_GLBL_TEST_CTRL_BITCLK_HS_SEL);
 
-	ret = msm_dsi_pll_set_usecase(phy->pll, phy->usecase);
+	ret = dsi_pll_14nm_set_usecase(phy->pll, phy->usecase);
 	if (ret) {
 		DRM_DEV_ERROR(&phy->pdev->dev, "%s: set pll usecase failed, %d\n",
 			__func__, ret);
@@ -1231,7 +1231,6 @@ const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs = {
 		.destroy = dsi_pll_14nm_destroy,
 		.save_state = dsi_pll_14nm_save_state,
 		.restore_state = dsi_pll_14nm_restore_state,
-		.set_usecase = dsi_pll_14nm_set_usecase,
 		.disable_seq = dsi_pll_14nm_disable_seq,
 		.enable_seq = dsi_pll_14nm_enable_seq,
 	},
@@ -1260,7 +1259,6 @@ const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs = {
 		.destroy = dsi_pll_14nm_destroy,
 		.save_state = dsi_pll_14nm_save_state,
 		.restore_state = dsi_pll_14nm_restore_state,
-		.set_usecase = dsi_pll_14nm_set_usecase,
 		.disable_seq = dsi_pll_14nm_disable_seq,
 		.enable_seq = dsi_pll_14nm_enable_seq,
 	},

drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c

@@ -1064,7 +1064,7 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
 	/* Select full-rate mode */
 	dsi_phy_write(base + REG_DSI_7nm_PHY_CMN_CTRL_2, 0x40);
 
-	ret = msm_dsi_pll_set_usecase(phy->pll, phy->usecase);
+	ret = dsi_pll_7nm_set_usecase(phy->pll, phy->usecase);
 	if (ret) {
 		DRM_DEV_ERROR(&phy->pdev->dev, "%s: set pll usecase failed, %d\n",
 			__func__, ret);
@@ -1142,7 +1142,6 @@ const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs = {
 		.destroy = dsi_pll_7nm_destroy,
 		.save_state = dsi_pll_7nm_save_state,
 		.restore_state = dsi_pll_7nm_restore_state,
-		.set_usecase = dsi_pll_7nm_set_usecase,
 	},
 	.min_pll_rate = 600000000UL,
 	.max_pll_rate = (5000000000ULL < ULONG_MAX) ? 5000000000ULL : ULONG_MAX,
@@ -1170,7 +1169,6 @@ const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs = {
 		.destroy = dsi_pll_7nm_destroy,
 		.save_state = dsi_pll_7nm_save_state,
 		.restore_state = dsi_pll_7nm_restore_state,
-		.set_usecase = dsi_pll_7nm_set_usecase,
 	},
 	.min_pll_rate = 1000000000UL,
 	.max_pll_rate = 3500000000UL,

drivers/gpu/drm/msm/dsi/phy/dsi_pll.c

@@ -113,12 +113,3 @@ int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
 
 	return 0;
 }
-
-int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
-			    enum msm_dsi_phy_usecase uc)
-{
-	if (pll->cfg->pll_ops.set_usecase)
-		return pll->cfg->pll_ops.set_usecase(pll, uc);
-
-	return 0;
-}